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Session Report

Summary:
Test run at: 2020-06-19 04:38:48 GMT
Client Prefix (v4): 2.57.121.x/24
Client AS (v4): 207679 (SMART2HOST-AS)
IPv4 Probes: 75
Client Prefix (v6): 2a0c:9f00:xx::/40
Client AS (v6): 62380 (BUNEA-HIGH-PEER-NETWORK)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length none/16
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

IPv4 Adjacent Netblock Testing:

Your host (2.57.121.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2.57.121.x/24/31207679no
2.57.121.x/24/30207679no
2.57.121.x/24/29207679no
2.57.121.x/24/28207679no
2.57.121.x/24/27207679no
2.57.121.x/24/26207679no
2.57.121.x/24/25207679no
2.57.121.x/24/24207679no
2.57.120.x/24/2362380no
2.57.123.x/24/2248090no
2.57.125.x/24/21132839no
2.57.113.x/24/203261no
2.57.105.x/24/19UNROUTEDno
2.57.89.x/24/1847583no
2.57.57.x/24/17UNROUTEDno
2.57.249.x/24/1611325no
2.56.121.x/24/1535913no
2.59.121.x/24/14UNROUTEDno
2.61.121.x/24/1312389no
2.49.121.x/24/125384no
2.41.121.x/24/1130722no
2.25.121.x/24/1012576no
2.121.121.x/24/95607no
2.185.121.x/24/858224no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6yes
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:18:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a0c:9f00:xx::/40/12062380yes
2a0c:9f00:xx::/40/11262380yes
2a0c:9f00:xx::/40/10462380yes
2a0c:9f00:xx::/40/9662380yes
2a0c:9f00:xx::/40/8862380yes
2a0c:9f00:xx::/40/8062380yes
2a0c:9f00:xx::/40/7262380yes
2a0c:9f00:xx::/40/6462380yes
2a0c:9f00:xx::/40/5662380yes
2a0c:9f00:xx::/40/4862380yes
2a0c:9f00:xx::/40/40UNROUTEDyes
2a0c:9f00:80xx::/40/32UNROUTEDyes
2a0c:9f80:xx::/40/24UNROUTEDyes
2a0c:1f00:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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